Software Engineering Intern, Cloud

Software Engineering Intern, Cloud at Calix

This is a full-time, remote Summer Internship that can be based anywhere in the United States or Canada.

Calix is looking for a Summer intern to join our Products team. In this role, you will be part of a unique and award-winning internship program within the company. The program provides the opportunity to learn new skills through training and on-the-job learning and the duration of the program is expected to be 90 days.

Responsibilities

• Design and develop software components: Assist in designing, coding, testing, and debugging software modules under the guidance of senior engineers.
• Problem solving and learning: Investigate and help resolve software issues, analyze root causes, and learn best practices for improving performance and reliability.
• Collaborate as part of a team: Actively participate in team discussions, design reviews, and brainstorming sessions to contribute ideas and learn how shared services are built and maintained.
• Support high-availability concepts: Gain exposure to high-availability (HA) concepts such as redundancy, clustering, and failover mechanisms through hands-on tasks and projects.
• Develop and consume REST APIs: Help develop, test, and integrate RESTful APIs to enable communication between software components.
• Adopt modern technologies: Learn and apply new tools, frameworks, and technologies that improve development efficiency and software quality.
• Follow engineering best practices: Use version control, follow coding standards, write unit tests, and document work clearly.

Qualifications

Currently enrolled in an accredited university pursuing a degree in Computer Science, Computer Engineering, Information Technology, or a related field.

Programming experience (academic projects or internships) in Java or similar object-oriented languages.

Basic understanding of software development fundamentals, including:

• Object-Oriented Programming (OOP)
• Data structures and collections
• Exception handling and basic multithreading concepts

Familiarity with Linux environments and basic command-line tools.

Exposure to REST APIs and data formats such as JSON and XML through coursework or projects.

Basic knowledge of databases (relational or NoSQL), such as PostgreSQL or MongoDB.

Understanding of software version control systems like Git.

Strong curiosity and willingness to learn

Good problem-solving and analytical skills

Ability to work well in a team-oriented environment

Clear communication skills and openness to feedback

Passion for building scalable, reliable software systems

Able to work for the complete summer break (May - August or June - September).

Preference will be given to students entering their junior or senior years with previous work experience.

Nice To Have / Bonus Qualifications

• Exposure to microservices architecture, Spring Boot, or similar frameworks.
• Familiarity with containerization concepts (Docker, Kubernetes) through labs or personal projects.
• Awareness of CI/CD pipelines, build tools, or automation frameworks.
• Basic understanding of networking concepts or telecommunications fundamentals.
• Academic or project exposure to monitoring, logging, or observability tools (e.g., ELK stack).

Key skills/competency

• Java
• Object-Oriented Programming (OOP)
• REST APIs
• Data Structures
• Git
• Linux
• Databases (SQL/NoSQL)
• Problem Solving
• Team Collaboration
• Software Development Lifecycle
• Cloud Computing